In SolidWorks, do you have the "Do not create external references to the model" checkbox checked?
I looked carefully in the help
But I don't really understand the impact of Case
2014-07-25-options_generales-reference_externes.png
2014-07-25-options_generales-reference_externes.png
Hello
A short video is better than a long speech:
http://www.youtube.com/watch?v=LLHKqQCVmuk
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So to transcribe the video, having activated "No external references", and converting the entities, you end up with an unconstrained sketch (in blue).
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It has a direct action on the "No extyerne reference" button (see image)
That is to say that if you edit in the context and this option is checked, by default you will not have any sketch constraint between your edited element and your context.
screenshot462.jpg
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External references are useful when a dimension of the part is related to one or more other parts in an assembly: the shape of a belt, the length of a conveyor belt, the trajectory of a cable chain, etc.
In these cases, the external references are the sketch relationships (cocentricity / parallel .... ) that we will put between a sketch of the part and another part of the assembly.
So: super useful!
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It doesn't seem to work under SolidWoks 2012 sp5.0
Whether I check the box or not, my sketch is always black (so constrained)
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It doesn't break the existing links, it's just for the new ones!
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If the sketch is already constrained by itself in the part it is normal that it remains constrained in the assembly, but if there is no constraint on the sketch and the box "Do not create external references to the model" is checked then you should not be able to constrain the sketch from your assembly with others Assembly Parts ... that's the box that wants it!
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